According to management scholar Henry Mint\zberg, none of the following are true of all managers except: a. Part of their performance measures deal with how they treat their subordinates. b. They work longer hours and rely on verbal communication rather than written. c. They work shorter hours and rely on written communication rather than verbal. d. They have work that is characterized by fragmentation, brevity, and variety. e. They tend to work long hours at a slow pace. f. They have work that is routine but fragmented and often deals with high-level concerns